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Transportation improvements in the nineteenth century loom large in the historiography of the profession during the twentieth century. This article describes the ongoing construction of a historical geographic information systems (GIS) transportation database designed to provide new insights into the impact of the transportation and communications revolution in the continental United States by providing evidence on the spatial dimensions of those changes over time. It also reviews some preliminary findings and reinterpretations based upon these data.

Railways were integral to the development of the Indian economy before World War I. This article presents new estimates of total factor productivity (TFP) for railways from 1874 to 1912, which highlight the strong performance of this key industrial sector. Railway-industry TFP growth was substantial averaging 2.3 percent per year and generating a 2.7 percent social savings for the Indian economy. A combination of factors contributed to TFP growth including greater capacity utilization, technological change, and improvements in organization and governance. Railways had higher TFP growth than most sectors in India and compared favorably with TFP growth in other countries.

We examine the impact of the Great Depression on the share of votes for right-wing extremists in elections in the 1920s and 1930s. We confirm the existence of a link between political extremism and economic hard times as captured by growth or contraction of the economy. What mattered was not simply growth at the time of the election, but cumulative growth performance. The impact was greatest in countries with relatively short histories of democracy, with electoral systems that created low hurdles to parliamentary representation, and which had been on the losing side in World War I.

Previous studies of the U.S. Constitutional Convention have relied on votes recorded for the state blocs or a relatively small number of delegate votes. We construct a new data set covering delegate votes on over 600 substantive roll calls, and use the data in several ways. First, we estimate a single dimensional position for the delegates which reflects their overall voting patterns. Next, we explain these positions using a variety of delegate and constituent variables. Finally, we suggest a method for identifying state and floor medians, which can be used to predict equilibrium outcomes at the Convention.

This article analyzes the stability of bimetallism for countries operating in integrated bullion markets that enact different legal ratios. I articulate a new theoretical framework to demonstrate that two countries can both be bimetallic only if they coordinate their legal ratios. The theoretical framework is applied to the mid-eighteenth century when London's legal ratio was 3.8 percent higher than that of Amsterdam. I find that Amsterdam was effectively on the bimetallic standard, whereas London was on a de facto gold standard.

When imported slaves were first sold in New Orleans, buyers were unaware of the slaves’ unobservable characteristics. In time, the new owners learned more about their slaves and may have resold the “lemons.” Previous research suggests that buyers anticipated such adverse selection and reduced their bids for these slaves. Consequently, we should observe lower prices for resold slaves. We test this proposition by linking the sequential sales records of 568 slaves. Through a comparison of initial and resale prices, we find little evidence to support the hypothesis that adverse selection lowered the price of resold slaves.

The geographical distributions of French and British foreign investment portfolios differ markedly before World War I. Did French portfolios favor European investments just as British portfolios favored “New World” assets? Should economic rationality have encouraged investors to invest widely in the “New World” rather than in Europe? Combining Modern Portfolio Theory and a new data set comprising assets listed on the Paris and London Stock Exchanges, we show that investing in the “New World” did not yield higher returns than investing in Europe. The “European preference” of the Paris Bourse and, by extension, of French investors was not inefficient.